diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## 0.11.0
 
+- **[Breaking change](./UPGRADE.md#removed-deprecated-isdate-methods-from-moment)**: Removed deprecated `isDate*` methods from `Moment`.
 - Added `Clock` implementation with `SystemClock` and `FrozenClock`.
 - Added guard methods for comparison methods to `Moment` like `mustBeEqualTo` with option to throw custom exception.
 
diff --git a/UPGRADE.md b/UPGRADE.md
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+++ b/UPGRADE.md
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 ## From 0.10.* to 0.11.0
 
-No breaking changes.
+### Removed deprecated `isDate*` methods from `Moment`
+
+The `isDate*` methods have all been removed and should be replaced with `is*InTimeZone` methods.
 
 ## From 0.9.* to 0.10.0